24 lines
481 B
Text
24 lines
481 B
Text
prelude
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inductive nat : Type :=
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| zero : nat
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| succ : nat → nat
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inductive list (A : Type) : Type :=
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| nil {} : list A
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| cons : A → list A → list A
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inductive int : Type :=
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| of_nat : nat → int
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| neg : nat → int
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attribute int.of_nat [coercion]
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constants n m : nat
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constants i j : int
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namespace list end list open list
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check cons i (cons i nil)
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check cons n (cons n nil)
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check cons i (cons n nil)
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check cons n (cons i nil)
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check cons n (cons i (cons m (cons j nil)))
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